| Identification | More | [Name]
1,4-Dihydroxyanthraquinone | [CAS]
81-64-1 | [Synonyms]
1,4-dihydroxy-9,10-anthracenedione
1,4-DIHYDROXYANTHRAQUINONE
1,4 DIHYROXY AQ
CI 58050
CI NO 58050
DSD ACID
LABOTEST-BB LT00052844
PIGMENT VIOLET 12
QUINAZARIN
QUINIZARIN
QUINIZARINE
Solvent Orange 86
1,4-dihydroxy-10-anthracenedione
1,4-dihydroxy-9,10(9H,10H)anthracenedione
1,4-Dihydroxy-9,10-anthraquinone
1,4-Dihydroxyanthra-9,10-quinone
1,4-Dihydroxyanthrachinon
1,4-dihydroxyanthrachinon(czech)[qr]
1,4-dihydroxy-anthraquinon
1,4-Dioxyanthraquinone | [EINECS(EC#)]
201-368-7 | [Molecular Formula]
C14H8O4 | [MDL Number]
MFCD00001209 | [Molecular Weight]
240.21 | [MOL File]
81-64-1.mol |
| Chemical Properties | Back Directory | [Appearance]
orange to red-brown crystalline powder | [Melting point ]
195-200 °C | [Boiling point ]
450 °C
| [bulk density]
350kg/m3 | [density ]
1.3032 (rough estimate) | [vapor density ]
8.3 (vs air)
| [vapor pressure ]
1 mm Hg ( 196.7 °C)
| [refractive index ]
1.5430 (estimate) | [Fp ]
222 °C
| [storage temp. ]
Store below +30°C. | [solubility ]
<1g/l | [Colour Index ]
58050 | [form ]
powder
| [pka]
pK (18°) 9.51 | [color ]
red-brown
| [Water Solubility ]
<1 g/L (20 ºC) | [Merck ]
14,8064 | [BRN ]
1914036 | [Henry's Law Constant]
1.2×102 mol/(m3Pa) at 25℃, Duchowicz et al. (2020) | [InChI]
1S/C14H8O4/c15-9-5-6-10(16)12-11(9)13(17)7-3-1-2-4-8(7)14(12)18/h1-6,15-16H | [InChIKey]
GUEIZVNYDFNHJU-UHFFFAOYSA-N | [SMILES]
Oc1ccc(O)c2C(=O)c3ccccc3C(=O)c12 | [LogP]
4.2 at 25℃ | [Uses]
Antioxidant in synthetic lubricants, dyes.
| [CAS DataBase Reference]
81-64-1(CAS DataBase Reference) | [NIST Chemistry Reference]
9,10-Anthracenedione, 1,4-dihydroxy-(81-64-1) | [EPA Substance Registry System]
81-64-1(EPA Substance) |
| Safety Data | Back Directory | [Symbol(GHS) ]
GHS09 | [Signal word ]
Warning | [Hazard statements ]
H410 | [Precautionary statements ]
P273 | [Hazard Codes ]
Xi | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin .
R43:May cause sensitization by skin contact. | [Safety Statements ]
S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes .
S36/37:Wear suitable protective clothing and gloves .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . | [RIDADR ]
UN 3077 9 / PGIII | [WGK Germany ]
2
| [RTECS ]
CB6600000
| [TSCA ]
Yes | [REACH Registrations]
Active | [PackingGroup ]
III | [HS Code ]
29146990 | [Storage Class]
13 - Non Combustible Solids | [Hazard Classifications]
Aquatic Acute 1
Aquatic Chronic 1 | [Safety Profile]
Poison by intravenous
route. Moderately toxic by intraperitoneal
route. Mutation data reported. An eye
irritant. A weak allergen. When heated todecomposition it emits acrid smoke and
irritating fumes. | [Hazardous Substances Data]
81-64-1(Hazardous Substances Data) | [Toxicity]
LD50 orally in Rabbit: > 5000 mg/kg |
| Hazard Information | Back Directory | [Chemical Properties]
orange to red-brown crystalline powder | [Definition]
ChEBI: A dihydroxyanthraquinone having the two hydroxy substituents at the 1- and 4-positions; formally derived from anthraquinone by replacement of two hydrogen atoms by hydroxy groups | [Preparation]
commonly known as Quinizarin. (a) Boric acid, boric acid and mercury, boric acid and nitrous acid or nitrous acid and mercury in the presence of Anthracene-9,10-dione with sulfuric acid; (b) In the presence of boric acid and nitrous acid, treated with sulfuric acid ?1-Hydroxyanthracene-9,10-dione or 2-Hydroxyanthracene-9,10-dione, (c)In the presence of boric acid, treated with sulfuric acid 1-Hydroxy-4-nitroanthracene-9,10-dione?or?1,4-Dichloroanthracene-9,10-dione?; (d) in the Boric acid and where did in the presence of sulfuric acid, Phthalic anhydride and 4-Chlorophenol?or Hydroquinone condensation, closed loop. | [Manufacturing Process]
1,4-Dihydroxyanthraquinone is commonly known as Quinizarin.
(a) Boric acid, boric acid and mercury, boric acid and nitrous acid or nitrous acid and mercury in the presence of Anthracene-9,10-dione with sulfuric acid;
(b) In the presence of boric acid and nitrous acid, treated with sulfuric acid 1-Hydroxyanthracene-9,10-dione or 2-Hydroxyanthracene-9,10-dione,
(c)In the presence of boric acid, treated with sulfuric acid 1-Hydroxy-4-nitroanthracene-9,10-dione or 1,4-Dichloroanthracene-9,10-dione;
(d) in the Boric acid and where did in the presence of sulfuric acid, Phthalic anhydride and 4-Chlorophenol ;or Hydroquinone condensation, closed loop. | [Synthesis Reference(s)]
Synthesis, p. 633, 1974 DOI: 10.1055/s-1974-23387
Tetrahedron Letters, 28, p. 1533, 1987 DOI: 10.1016/S0040-4039(01)81035-2 | [General Description]
1,4-Dihydroxyanthraquinone is an organic dye molecule with an aromatic structure. It is a derivative of anthraquinone bearing hydroxyl moieties. They may find uses in pharmacological, biochemical and dye industries. Anthraquinone dye are resistant to degradation. | [Flammability and Explosibility]
Nonflammable | [Synthesis]
At 250 DEG C, heat boric acid 10h, obtain boric acid dehydration compound; Recording boric anhydride in boric acid dehydration compound through ultimate analysis is 99.3%, tetraboric acid 0.7%;In condensation reaction still, add oleum 350kg, phthalic anhydride 120kg, boric acid dehydration compound 40kg, para-chlorophenol 100kg(oleum: phthalic anhydride: metaboric acid: para-chlorophenol=3.5:1.2:0.4:1); Oil bath is warmed up to material 100 DEG C, accurately controls temperature of reaction 100 ~ 105 DEG C, is incubated 0.5 hour; Binder is in the hydrolysis kettle being added with 300L water, and adjustment temperature to 50 DEG C, 50 DEG C of insulations 0.1 hour, discharging press filtration, is washed to neutrality, dries up and obtains 1,4-hydroxyanthraquinone tide product 400.2kg, detect water ratio 54.2%, give money as a gift product 183.3kg, passes through liquid-phase chromatographic analysis, 1, the content of 4-hydroxyanthraquinone reaches 98.74%, dry product purity 97.12%, and yield is 94.1%. | [Properties and Applications]
orange. Orange red powder. Insoluble in water, soluble in ether, in strong base in certain solubility, but soluble in organic solvent oil, etc. In concentrated sulfuric acid in green yellow fluorescence. Mainly used for oil coloring. Also used in all kinds of plastic and resin, light industry products coloring. | [Purification Methods]
Crystallise quinizarin from glacial acetic acid. [Beilstein 8 H 450, 8 IV 3260.] |
|
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Energy Chemical
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www.energy-chemical.com |
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